Question
Why does menstruation occur?
Solution
The ovary releases one egg every month and the uterus prepares for the implantation of the zygote by thickening its walls. The thick wall is not necessary if the egg is not implanted. Thus , the uterine lining slowly breaks down and comes out through the vagina as blood and mucus. This cycle takes place roughly every month and is known as menstruation and lasts for about two to eight days.
